The info at https://socket.io/docs/v4/client-with-bundlers/ is misleading about debug package

[qiulang]

The information at https://socket.io/docs/v4/client-with-bundlers/ is misleading about how to deal with debug package. Because if we use mode:"production" for webpack, according to https://socket.io/docs/v4/client-installation/, the production version socket.io.min.js already removes debug package, no need to use webpack-remove-debug again.

I was bugged by IE support for a long time because of debug 4.x. I opened/commented on issues like debug-js/debug#729 & socketio/socket.io-client#1328

I still can't make socket.io-client 4.x work on IE. But I can confirm that it is NOT because of debug package. Because the error I get is script1010 expected identifier. If I use debug 4.x package, the error is script1002 syntax error

I did add plugins: ["@babel/plugin-transform-object-assign"], // ensure compatibility with IE 11 in my webpack config (actually in my babel.config.js) but I still can't make it works. I have given up supporting IE with 4.x.

// copy from https://socket.io/docs/v4/client-with-bundlers/
module.exports = {
  ...
  mode: "production",
  node: false,
  module: {
    rules: [
      {
        ...
      },
      {
        test: /\.js$/,
        loader: "webpack-remove-debug", // remove "debug" package, but I think it is unnecessary
      },
    ],
  },
};